3 bet pre is normally good, if V is UTG or MP I sometimes just flat AQ. Once we 3 bet and are IP I think we have to call the 4 bet.

Flop is standard.

OTT if I am reading it right there is 4 in the pot with like 3 back. I think checking or betting are both fine. Shoving now works a little better for bluffs, checking a little better for value. I'm fine with taking either line. OTR I do like shoving vs this small sizing.